Home / 3,286.12-4,531.80-2,489.08

Finding the Fourth Proportional to 3,286.12, 4,531.80 and 2,489.08

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Solution

The fourth proportional to 3,286.12, 4,531.80 and 2,489.08 is: 3,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.12 : 4,531.80 = 2,489.08 : x
  2. Step 2: Convert to fraction form
    3,286.12/4,531.80 = 2,489.08/x
  3. Step 3: Cross multiply
    3,286.12x = 4,531.80 × 2,489.08
  4. Step 4: Simplify right side
    3,286.12x = 11,280,012.74
  5. Step 5: Solve for x
    x = 11,280,012.74/3,286.12
  6. Step 6: Final answer
    x = 3,432.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.